| # Copyright 2016 Google Inc. |
| # |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| declare_args() { |
| skia_use_system_libjpeg_turbo = is_official_build && !is_wasm |
| } |
| |
| import("../third_party.gni") |
| |
| if (skia_use_system_libjpeg_turbo) { |
| system("libjpeg") { |
| libs = [ "jpeg" ] |
| } |
| } else { |
| source_set("libjpeg_headers") { |
| sources = [ |
| "../externals/libjpeg-turbo/src/jconfig.h", |
| "../externals/libjpeg-turbo/src/jdct.h", |
| "../externals/libjpeg-turbo/src/jinclude.h", |
| "../externals/libjpeg-turbo/src/jmorecfg.h", |
| "../externals/libjpeg-turbo/src/jpeglib.h", |
| "../externals/libjpeg-turbo/src/jpeglibmangler.h", |
| ] |
| } |
| |
| # Based on |
| # https://github.com/libjpeg-turbo/libjpeg-turbo/blob/20ade4de/CMakeLists.txt#L605 |
| # |
| # Starting in 3.x, libjpeg-turbo supports runtime-selectable precision. |
| # This requires compiling some source sets multiple times, with different |
| # BITS_IN_JSAMPLE defines (16, 12, and the default 8), to generate precision- |
| # specific symbols (e.g. jpeg16_read_scanlines vs jpeg12_read_scanlines vs |
| # jpeg_read_scanlines). |
| |
| libjpeg16_sources = [ |
| "../externals/libjpeg-turbo/src/jcapistd.c", |
| "../externals/libjpeg-turbo/src/jccolor.c", |
| "../externals/libjpeg-turbo/src/jcdiffct.c", |
| "../externals/libjpeg-turbo/src/jclossls.c", |
| "../externals/libjpeg-turbo/src/jcmainct.c", |
| "../externals/libjpeg-turbo/src/jcprepct.c", |
| "../externals/libjpeg-turbo/src/jcsample.c", |
| "../externals/libjpeg-turbo/src/jdapistd.c", |
| "../externals/libjpeg-turbo/src/jdcolor.c", |
| "../externals/libjpeg-turbo/src/jddiffct.c", |
| "../externals/libjpeg-turbo/src/jdlossls.c", |
| "../externals/libjpeg-turbo/src/jdmainct.c", |
| "../externals/libjpeg-turbo/src/jdpostct.c", |
| "../externals/libjpeg-turbo/src/jdsample.c", |
| "../externals/libjpeg-turbo/src/jutils.c", |
| ] |
| |
| libjpeg12_sources = libjpeg16_sources + [ |
| "../externals/libjpeg-turbo/src/jccoefct.c", |
| "../externals/libjpeg-turbo/src/jcdctmgr.c", |
| "../externals/libjpeg-turbo/src/jdcoefct.c", |
| "../externals/libjpeg-turbo/src/jddctmgr.c", |
| "../externals/libjpeg-turbo/src/jdmerge.c", |
| "../externals/libjpeg-turbo/src/jfdctfst.c", |
| "../externals/libjpeg-turbo/src/jfdctint.c", |
| "../externals/libjpeg-turbo/src/jidctflt.c", |
| "../externals/libjpeg-turbo/src/jidctfst.c", |
| "../externals/libjpeg-turbo/src/jidctint.c", |
| "../externals/libjpeg-turbo/src/jidctred.c", |
| "../externals/libjpeg-turbo/src/jquant1.c", |
| "../externals/libjpeg-turbo/src/jquant2.c", |
| ] |
| |
| libjpeg_sources = libjpeg12_sources + [ |
| "../externals/libjpeg-turbo/src/jaricom.c", |
| "../externals/libjpeg-turbo/src/jcapimin.c", |
| "../externals/libjpeg-turbo/src/jcarith.c", |
| "../externals/libjpeg-turbo/src/jchuff.c", |
| "../externals/libjpeg-turbo/src/jcicc.c", |
| "../externals/libjpeg-turbo/src/jcinit.c", |
| "../externals/libjpeg-turbo/src/jclhuff.c", |
| "../externals/libjpeg-turbo/src/jcmarker.c", |
| "../externals/libjpeg-turbo/src/jcmaster.c", |
| "../externals/libjpeg-turbo/src/jcomapi.c", |
| "../externals/libjpeg-turbo/src/jcparam.c", |
| "../externals/libjpeg-turbo/src/jcphuff.c", |
| "../externals/libjpeg-turbo/src/jctrans.c", |
| "../externals/libjpeg-turbo/src/jdapimin.c", |
| "../externals/libjpeg-turbo/src/jdarith.c", |
| "../externals/libjpeg-turbo/src/jdatadst.c", |
| "../externals/libjpeg-turbo/src/jdatasrc.c", |
| "../externals/libjpeg-turbo/src/jdhuff.c", |
| "../externals/libjpeg-turbo/src/jdicc.c", |
| "../externals/libjpeg-turbo/src/jdinput.c", |
| "../externals/libjpeg-turbo/src/jdlhuff.c", |
| "../externals/libjpeg-turbo/src/jdmarker.c", |
| "../externals/libjpeg-turbo/src/jdmaster.c", |
| "../externals/libjpeg-turbo/src/jdphuff.c", |
| "../externals/libjpeg-turbo/src/jdtrans.c", |
| "../externals/libjpeg-turbo/src/jerror.c", |
| "../externals/libjpeg-turbo/src/jfdctflt.c", |
| "../externals/libjpeg-turbo/src/jmemmgr.c", |
| "../externals/libjpeg-turbo/src/jmemnobs.c", |
| "../externals/libjpeg-turbo/src/jpeg_nbits.c", |
| ] |
| |
| static_library("libjpeg16") { |
| sources = libjpeg16_sources |
| |
| defines = [ |
| "NO_GETENV", |
| "NO_PUTENV", |
| "BITS_IN_JSAMPLE=16", |
| ] |
| |
| public_deps = [ ":libjpeg_headers" ] |
| } |
| |
| static_library("libjpeg12") { |
| sources = libjpeg12_sources |
| |
| defines = [ |
| "NO_GETENV", |
| "NO_PUTENV", |
| "BITS_IN_JSAMPLE=12", |
| ] |
| |
| public_deps = [ ":libjpeg_headers" ] |
| } |
| |
| third_party("libjpeg") { |
| public_include_dirs = [ |
| ".", |
| "../externals/libjpeg-turbo", |
| "../externals/libjpeg-turbo/src", |
| ] |
| |
| defines = [ |
| "TURBO_FOR_WINDOWS", |
| |
| # Add support for arithmetic encoding (C_) and decoding (D_). |
| # This matches Android. Note that such JPEGs are likely rare, given lack of |
| # support by major browsers. |
| "C_ARITH_CODING_SUPPORTED=1", |
| "D_ARITH_CODING_SUPPORTED=1", |
| ] |
| |
| if (!is_win || is_clang) { |
| defines += [ "USE_CLZ_INTRINSIC" ] # Cuts a 64K table. |
| } |
| |
| sources = libjpeg_sources |
| |
| public_deps = [ |
| ":libjpeg12", |
| ":libjpeg16", |
| ":libjpeg_headers", |
| ] |
| |
| if (!is_win && (current_cpu == "arm" || current_cpu == "arm64")) { |
| defines += [ |
| "NEON_INTRINSICS", |
| "WITH_SIMD", |
| ] |
| sources += [ |
| "../externals/libjpeg-turbo/simd/arm/jccolor-neon.c", |
| "../externals/libjpeg-turbo/simd/arm/jcgray-neon.c", |
| "../externals/libjpeg-turbo/simd/arm/jcphuff-neon.c", |
| "../externals/libjpeg-turbo/simd/arm/jcsample-neon.c", |
| "../externals/libjpeg-turbo/simd/arm/jdcolor-neon.c", |
| "../externals/libjpeg-turbo/simd/arm/jdmerge-neon.c", |
| "../externals/libjpeg-turbo/simd/arm/jdsample-neon.c", |
| "../externals/libjpeg-turbo/simd/arm/jfdctfst-neon.c", |
| "../externals/libjpeg-turbo/simd/arm/jfdctint-neon.c", |
| "../externals/libjpeg-turbo/simd/arm/jidctfst-neon.c", |
| "../externals/libjpeg-turbo/simd/arm/jidctint-neon.c", |
| "../externals/libjpeg-turbo/simd/arm/jidctred-neon.c", |
| "../externals/libjpeg-turbo/simd/arm/jquanti-neon.c", |
| ] |
| include_dirs = [ "../externals/libjpeg-turbo/simd/arm" ] |
| if (current_cpu == "arm") { |
| sources += [ |
| "../externals/libjpeg-turbo/simd/arm/aarch32/jchuff-neon.c", |
| "../externals/libjpeg-turbo/simd/arm/aarch32/jsimd.c", |
| ] |
| } else if (current_cpu == "arm64") { |
| sources += [ |
| "../externals/libjpeg-turbo/simd/arm/aarch64/jchuff-neon.c", |
| "../externals/libjpeg-turbo/simd/arm/aarch64/jsimd.c", |
| ] |
| } |
| } |
| } |
| } |
